Don't worry, my contempt for satan, err, the dealership is directed mostly towards the 300% markup parts counter guys. The fact that they will come down drastically in price so easily when pitted against eachother shows that they're ridiculously marked up. Yeah, we had the tester hooked up to both leads. They ran fine at first, but after running for a while they started to fail. At different intervals ofcourse as one was in worse shape than the other. I too am hesistant to replace parts without making sure that's the part that is bad, I'm also hesitant to break down on a houston freeway during rushhour again. And then there's the ants...
-Kyle -Ormiga! On Sun, Sep 28, 2008 at 12:20 AM, Dennis Hammerl <[EMAIL PROTECTED]> wrote: > yeah, I have one of those testers. Did you check the plug cap resistance? > They should be 5~10 meg each. If you examined the schematic for the bike you > will see that the output side of the coils is actually a loop. In effect, > one plug fires from the center electrode and the other from the ground > strap. Both at the same time. One fires on an exhaust stroke while the other > is on a compression stroke. With this in mind, if one plug wire is off, both > cease to function since the loop is broken. Now when the tester is used by > an amateur, it can show a bad component. I don't agree with the jump start > theory but anything is possible. I don't recall ever replacing a coil set on > one of those. The failure rate is below .3%. I have replaced pulse coils on > a fair number of those bikes. Failure is due to heat. Check resistance of > those cold and hot. All I'm trying to do is completely confirm failed > component. If you are satisfied with the results as it stands now, replace > with OEM. One of my guys has a CB650sc with over 38k on it and all original > electrics. > Now I'll duck while all you dealer haters respond. > > --- On *Sat, 9/27/08, Kyle Munz <[EMAIL PROTECTED]>* wrote: > > From: Kyle Munz <[EMAIL PROTECTED]> > Subject: [Nighthawk Lovers] Re: Coils? > To: [email protected] > Date: Saturday, September 27, 2008, 1:32 AM > > > One was just out of specs, the other one had infinite resistance. I then > took it to the local cycle shop that had a fancy ignition coil tester. Nifty > adapter on the end kind of like a dummy sparkplug you could screw in and out > to adjust the gap on the fly. One coil could just barely make a spark at > less than 1/4 inch, the other could spark almost twice that. Both petered > out after a few minutes, after they warmed up. I know the odds of both going > bad are twice as unlikely, but one was definitely worse than the other. That > explains why it felt like my bike was only running on 2 cyls before it > crapped out completely the other day when it was hot. And after a few > minutes cooling off it would run, but again like it was on half its cyls. > Then after I let it set for 30 mins it cranked up and ran on all cyls, even > if it was still missing occasionally. One of the only situations I can think > of that would cause both coils to fail around the same time would be jump > starting off of a running car. I'm afraid that if the previous owner tried > that I may have more than just coil problems. This bike has had ever single > electrical system knackered in some form or another. > > -Kyle > -picked up "knackered" from watching TopGear ;) > > > On Fri, Sep 26, 2008 at 11:04 PM, Dennis Hammerl <[EMAIL PROTECTED]>wrote: > >> How did you determine that ? Do you know what the odds of both going bad >> at the same are ? Fall back and regroup. Fill me in. >> >> --- On *Fri, 9/26/08, Kyle Munz <[EMAIL PROTECTED]>* wrote: >> >> From: Kyle Munz <[EMAIL PROTECTED]> >> Subject: [Nighthawk Lovers] Coils? >> To: [email protected] >> Date: Friday, September 26, 2008, 3:06 PM >> >> I finally got a chance to take a break from himmicane cleanup to look at >> my bike today. Turns out the coils are dead, or we don't know how to work a >> multimeter. I'm fairly confident in my multimeter skills so I'm going to go >> with dead coils. Anyone have any recommendations on aftermarkets or stick >> with OEM? >> >> -Kyle >> -83CB650SC >> >> >> >> >> >> > > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en -~----------~----~----~----~------~----~------~--~---
